[hpsdr] Munin revisited.

[Helmut Oeller]

Hi Warren,

I dare to disagree with the great magus, hi.

Since more than two years my friend Alfred, HB9EPU, employs adaptive pre-distortion at his Atlas-based radio with good results. The Mercury and Pennylane use standard firmware versions.
The difference to PS is that he does not use separate DDC/DUC to prepare data for correction. He found an effective way to correlate the originally generated TX base-band samples in the PC with the incoming RX base-band samples (through the 'main' RX). As all data are available there, the complete job can be done in the PC and the method perhaps implemented at least in a derivate of OpenHPSDR PowerSDR. But the crux is that Alfred has developed his own operation software and uses proprietary SW-packets licensed on him. This makes it actually impossible to share the SW solution.

73, Helmut, DC6NY

  

-----Ursprüngliche Nachricht-----
Von: Hpsdr [mailto:hpsdr-bounces at lists.openhpsdr.org] Im Auftrag von Warren C. Pratt
Gesendet: Samstag, 5. August 2017 05:14
An: hpsdr at lists.openhpsdr.org
Betreff: Re: [hpsdr] Munin revisited.

***** High Performance Software Defined Radio Discussion List *****

Hi Jim,

I am the author of PureSignal.  Please see below for answers and comments.

73,

Warren  NR0V




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